Excavating and dredging machine.



STEINBREOKBR. EXGAVATING AND DREDGING MACHINE.

APPLICATION FILED JAN. 3, 1913.

Patented Aug. 19, 1913.

2 SHEETS-SHEET l,

hwcwtoz A. STEINBREGKBR. EKCAVATING AND DRBDGING MACHINE.

APIfLIOATION FILED mus, 191 s. v

Patented Aug. 19, 1913.

2 SHEETSSHEET 2.

ARTHUR STEINB'RECKER; OFCALGARY, ALBERTA, clirlviiiiiii" t EXCAVATING AND DREDGING MACnI EESIQA Trial! zc/wm it may concern .f

lie it known that I, ARTHUR STEIN- liltlICKl-Ili, a Snb cc-t'of the King of Great 'Britain, residing at Calgary, in the Provto provide a machine of the type known as a dredging dipper which shall'be simple, inexpensive, easily operated and efiicient in 'op'ei 'ation. With these and other ends in viewwhich will readily appear as the nature of the in- "xfle'ntion is better understood, the same consists' in the improved construction and novel arrangement and combinationof parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying (lrawings has. been illustrated a simpleand preferred form of the invention, it being, however, understood that no limitation necessarily made to the precise structural details therein exhibited,

but that changes, alterations and modifica-' tions within the scope of the claims may be resorted to v hen desired.

In the drawings,l igure I is a view in elevation of the machine showing the same in. dredging or excavating position. Fig. 2 is a vertical sectional view taken on the line 22 in Fig. 1. Fig. 3 isa top plan view. Fig. at is a view in elevation, showing the dipper in discharging position. Fig. 5 is a sectional detail view taken on the line 5-5 in Fig. 2.

Corresponding parts in the several figures are denotedby like characters of reference.

The improved apparatus has been shown as mounted on a portable support which may be in the nature of a float, a portion of which is shown at 1, although the apparatus may be erected on the platform of a flat car or any other suitable portable structure. The apparatus includes a mast A which, as shown, consists of a ladder structure, including side members 2, 2 and steps 3. This mast is preferably supported pivotally so as to be capable of rotating about an approximately vertical axis. To this end the mast may be provided at its lower end with a pivot member 4: engaging a socket 1n the support 1. A pivot member 5 at the upper Specification of Letters Patent.

Application filedJ'anu'ary 3, 1913. Serial No. 740,006.

"members, such as cables end of the mast is prov c plate 6' from which guy iheinbers or stay el'ullo suitable anchoring devices. i i

8 designates a chute o gt'i-ough "which is provided on the underside thereof with; transverse cleats/9, Tlii's chute' oi-" trough may be supported on'aiiv one of the steps-""3 of the mast, and such st e"(maybe engaged between any two of useless-c, the ufistp porting the chute Manse 'loiigitudiiy'xl movement; A second 'titefl is arranged to slide longitudinally'nf the-chutes with which it is suitably conffected, as by means of flanges 11 formed at the upper edges of the side members of thechu'te 8 fastening means of any well known description may also be employed fortlie purpose 'of'assem bling the chutes S and ll together in adjusted position, -but sucli 'fastenmg means have not been specificall yl shown. The chute 10 is provided at whatf'will' h'e"regarded as its front end with forwardly extendingcon verging arms 12 supporting at their front ends a pivot member 13 on which the dipper or dredging bucket B is hingedly supported.

o engage a cap Said dipper or dredging member consists of a chute or trough 14 having at one end thereof a scoop 15. The trough 14: is made of such dimensions that when tilted in the direction of the slidable chute 10 it will engage the front end of the latter so as to discharge therein. The trough leis also provided with brackets 16 supporting an arm 17 that extends longitudinally from the trough. Suitably mounted on the support 1 is a hoisting apparatus including winding drums 18 and 19 which may be suitably driven in any direction by power derived from a donkeyv engine 20 or from a motor ofanv description, the transmission means including reversing gearing which is conventionally indicated at 21, but which, being well known, does not require to be described in detail. One of the drums, 18, supports a flexible element 22, ,an intermediate portion of which is wound on the drum so as to be in frictional engagement therewith. while the two ends of said flexible element are connected, respectively, with the scoop uexed, it will be seen that by unwinding the 12p terial, and the dipper maythen' be tilted to another guidepulley 27 is sup-.; dn -tIie'maSt 8. The outer or front 'end!of -the-.:s 1idable chute 10 is supported 1?}, stirrup 2 8 which is connected with. the 'jwindingidrum l by a flexible element 29" guided-over a pulley' 30' supported at'lor neaii -the top of the mast. 4

From the foregoing description taken in connection with the drawings hereto an fi em'bh Jhoisting'erement or cable '29- from i the drum'l'9,' the front end of the slidable chute 10 caprying-gthe, dipper B will belowered". The-dipper may be tilted by oper- 5- ating the drum 18 so as to cause it to engage the material to be excavated and to bite into the samef -By manipulating the drums, the chute 10 may now be elevated so as to cause the dipperi'to gather a load of maoflthechuteL' .e 9. In amachineof theclass described, a

means for raising and lowering" the free end slidably connected with the first chute, a

able chute," a w1nding drum, asuitably "connected with the-front end o I chute, and means for tilting the dipper 1nj sting the chute.

.the steps, said chute havingforwardly ex-v tending arms, a dipper pivotally connected with saidarms, said dipperconsisting of a 'troughhaving a scoop at-one end and an' arm at the opposite end, said trough being for tilting the-dipper, and means forrais- -ing and lowering the free end-"of the-chute. Intestimony. whereof I aflix my signature in presence. of two witnesses.

ARTHUR STEINBRECKEB. Witnesses: H. J. FENIMORE,

chute, means for tilting the dipper, and

W. E. Loon.

'mast having a plurality; oiosteps, a;c hute provided on its underside; with a plurality of cleats, said chute being .supported ad-' justably-on one of the steps, a secorld chutestirrup supporting the free-end of the sliddependently of the hoisting means for ad In a machine of the class described,

mast havinga plurality o steps,v a chute supported adjustably with respect toone. of"

adapted to discharge into. the chute, means.

guided flexible member connecting the windv ,ln'g drum with the stirrup, a'difppe'r 'tiltably' the slidable 

